/Engine/Plugins/Online/OnlineSubsystem/Source/Public/Interfaces/OnlinePurchaseInterface.h
Single purchased offer offer
struct FReceiptOfferEntry : public [FJsonSerializable](API\Runtime\Json\Serialization\FJsonSerializable)
TArray<FLineIt...
LineItems
Information about the individual items purchased
FOfferNamespace
Namespace
FUniqueOfferId
OfferId
int32
Quantity